Operator - elementAt

ElementAt

emit only item n emitted by an Observable

The ElementAt operator pulls an item located at a specified index location in the sequence of items emitted by the source Observable and emits that item as its own sole emission.



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        List<String> list = new ArrayList<>();
        list.add("List-1");
        list.add("List-2");
        list.add("List-3");
        list.add("List-4");
        list.add("List-5");


       Observable.fromIterable(list).elementAt(2).subscribe(System.out::println);

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or Default

Observable.fromIterable(list).elementAt(15, list.get(1)).subscribe(System.out::println);

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or Error

Observable.fromIterable(list).elementAtOrError(15).subscribe(System.out::println);


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